Movatterモバイル変換


[0]ホーム

URL:


Jump to content
WikipediaThe Free Encyclopedia
Search

Iranian calendars

From Wikipedia, the free encyclopedia
Calendars used in Iran
For the official calendar in Iran, seeSolar Hijri calendar.

Today
(atUTC+00)
Wednesday
Gregorian calendar26 November,AD2025
Islamic calendar5Jumada al-thani,AH 1447
(usingtabular method)
Hebrew calendar6Kislev,AM 5786
Coptic calendar17Hathor,AM 1742
Solar Hijri calendar5Azar, SH 1404
Bengali calendar11Ogrohayon,BS 1432
Julian calendar13 November,AD 2025

TheIranian calendars orIranian chronologies (Persian:گاه‌شماری ایرانی,Gâh Šomâriye Irâni) are a succession of calendars created and used for over two millennia inIran, also known as Persia. One of the longest chronological records in human history, the Iranian calendar has been modified many times for administrative purposes. The most influential person in laying the frameworks for the calendar and its precision was the 11th century Persian polymath,Omar Khayyam. The modern Iranian calendar is theSolar Hijri calendar, currently the officialcivil calendar in Iran.

Nowruz, the Iranian New Year, begins at the midnight nearest to the instant of thenorthern spring equinox, as determined by astronomic calculations for themeridian of Tehran (52.5°E). Thus the calendar isobservation-based, unlike theGregorian calendar, which is rule-based.[1] This equinox occurs on or about 20 March of the Gregorian calendar. Thetime zone of Iran isIran Standard Time,UTC+03:30.

Ancient calendars

[edit]
See also:Royal stars

The earliest evidence of Iranian calendrical traditions is from thesecond millennium BC and possibly even predates the appearance of the Iranian prophetZoroaster. The first fully preserved calendar is that of theAchaemenids, a royal dynasty of the 5th century BC who gave rise to Zoroastrianism. Throughout recorded history,Persians have been keen on the idea and importance of having acalendar. They were among the first cultures to use asolar calendar and have long favoured a solar overlunar andlunisolar approaches. The sun has always been a religious and divine symbol inIranian culture and is the origin of the folklore regardingCyrus the Great.[2]

Old Persian calendar

[edit]

Old Persian inscriptions and tablets indicate that early Iranians used a360-day calendar based on the solar observation directly and modified for their beliefs. Days were not named. The months had two or three divisions depending on the phase of the moon. Twelve months of 30 days were named for festivals or activities of thepastoral year. Anintercalation month was added periodically to keep the calendar synchronized with the seasons.[3]

The following table lists the Old Persian months, alongside the approximate Gregorian months and approximate Babylonianlunar months.[4]

OrderApproximate correspondingJulian monthsOld PersianElamite spellingMeaningApproximate correspondingBabylonian lunar month(s)
1March–AprilĀdukanaišaHadukannaš"Sowing (month)"Nīsannu
2April–MayΘūravāharaTurmar"(Month of) strong spring"Ayyāru
3May–JuneΘāigracišSākurriziš"Garlic-collecting (month)"Sīmannu
4June–JulyGarmapadaKarmabataš"Heat-station (month)"Du'ūzu
5July–AugustDrnabājiTurnabaziš"Harvest (month)"Ābu
6August–SeptemberKārapaθiyaKarbašiyašuncertainUlūlū
7September–OctoberBāgayādišBakeyatiš"(Month of) the worship ofbaga (god, perhapsMithra)"Tašrītu
8October–November*VrkazanaMarkašanaš"Wolf killing (month)"Arahsamna
9November–DecemberĀçiyādiyaHašiyatiš"(Month) of the worship of the fire"Kisilīmu
10December–JanuaryAnāmakaHanamakaš"(Month of) the nameless god(?)"Tebētu
11January–February*ΘwayauvāSamiyamaš"(Month of) the terrible one"Šabāţu
12February–MarchViyax(a)naMiyakannaš"Digging-up (month)"Addāru

There were four farming festivals, symmetric aboutmaidyoshahem (midsummer):

FestivalTime from previous
hamaspathmaidyem75 days
maidyoshahem105 days
ayathrem105 days
maidyarem75 days

Two more festivals were later added, creating the sixgahanbar:

FestivalTime from previous
hamaspathmaidyem (end of retirement)75 days
maidyozarem (spring)45 days
maidyoshahem (mid-summer)60 days
paitishahem (harvest)75 days
ayathrem (end of the summer)30 days
maidyarem75 days

Zoroastrian calendar

[edit]
Main article:Zoroastrian calendar
See also:Cappadocian calendar

The first calendars based onZoroastrian cosmology appeared in the later Achaemenid period (650 to 330 BC). They evolved over the centuries, but month names changed little until now.

The unifiedAchaemenid Empire required a distinctive Iranian calendar, and one was devised inEgyptian tradition, with 12 months of 30 days, each dedicated to ayazata (Eyzad), and four divisions resembling the Semitic week. Four days per month were dedicated toAhura Mazda and seven were named after the sixAmesha Spentas. Thirteen days were named after Fire, Water, Sun, Moon,Tiri and Geush Urvan (the soul of all animals), Mithra,Sraosha (Soroush, yazata of prayer),Rashnu (the Judge),Fravashi,Bahram (yazata of victory), Raman (Ramesh meaning peace), andVata, the divinity of the wind. Three were dedicated to the female divinities,Daena (yazata of religion and personified conscious),Ashi (yazata of fortune) andArshtat (justice). The remaining four were dedicated toAsman (lord of sky or Heaven),Zam (earth), Manthra Spenta (the Bounteous Sacred Word) and Anaghra Raocha (the 'Endless Light' of paradise).

The month names and their modern versions are given in the following table.

OrderAvestan name of the Yazata (in thegenitive)Approximate meaning of the namePahlavi Middle PersianModern Iranian Persian
RomanizedEnglishRomanizedNative ScriptRomanized
1Fravašinąm(Guardian spirits, souls of the righteous)FrawardīnفروردینFarvardīn
2Ašahe Vahištahe"Best Truth" / "Best Righteousness"ArdwahištاُردیبهشتOrdībehešt
3Haurvatātō"Wholeness" / "Perfection"KhordādخردادKhordād
4Tištryehe"Sirius"TīrتیرTīr
5Amərətātō"Immortality"AmurdādاَمردادAmordād
6Xšaθrahe Vairyehe"Desirable Dominion"ShahrewarشهریورShahrīvar
7Miθrahe"Covenant"MihrمهرMehr
8Apąm"Waters"ĀbānآبانĀbān
9Āθrō"Fire"ĀdurآذرĀzar
10Daθušō"The Creator" (i.e. Ahura Mazda)DayدیDey
11Vaŋhə̄uš Manaŋhō"Good Spirit"WahmanبهمنBahman
12Spəntayā̊ Ārmatōiš"Holy Devotion"SpandarmadاسفندEsfand

The calendar had a significant impact on religious observance. It fixed the pantheon of major divinities, and also ensured that their names were uttered often, since at every Zoroastrian act of worship the yazatas of both day and month were invoked. It also clarified the pattern of festivities; for example, Mitrakanna orMehregan was celebrated on Mithra day of Mithra month, and the Tiri festival (Tiragan) was celebrated on Tiri day of the Tiri month.

In 538 BCCyrus the Great (uncertain if he was a Zoroastrian) conquered Babylon and the Babylonian luni-solar calendar came into use for civil purposes.Cambyses conquered Egypt in 525 BC. He was accompanied byDarius, a Zoroastrian who became ruler of the Persian empire in 517 BC. The Zoroastrians adopted the wandering Egyptian solar calendar of twelve months of thirty days plus fiveepagomenal days. As their year began in the spring (with the festival ofnorouz) theepagomenai were placed just beforenorouz.

In Egypt the star Sirius had significance since every 1460 years (theSothic cycle) itsheliacal rising (just before sunrise) marked the Egyptian new year and the inundation of the Nile. In Persia also the star had significance, since its heliacal rising there also coincided with the coming of the rain. The fourth Persian month wasTishtrya (Sirius, rain star). The vernal equinox at Greenwich fell on the first day of the first month from 487 to 483 BC (inclusive). Adopting S H Taqizadeh's date of 28 March 487 BC for the reform[5] the calendar for that year is as follows:

* denotes 1 Epagomene
Egyptian monthFirst dayPersian monthFirst day
423 March123*–28 March
522 April227 April
622 May327 May
721 June426 June
821 July526 July
920 August625 August
1019 September724 September
1119 October824 October
1218 November923 November
118*–23 December1023 December
222 January1122 January
321 February1221 February

The fourth month includes 20 July, the date of the heliacal rising of Sirius. In the first year the people carried on using the old calendar, anticipating festival dates by five days. As each day is named after a god, it is important to observe the celebrations on the right day. Thus thefravasis festival, which in the old calendar was kept between sunset on 30 Spandarmad and sunrise on 1 Frawardin, was now observed throughout theepagomenai. In the second year of the reform, the old 30 Spandarmad was the new 25 Spandarmad, so from then on the festival covered eleven days, up to the new 1 Frawardin. Five days was considered enough for other festivals, however.

In all the lands where the Persian calendar was used theepagomenai were placed at the end of the year. To offset the difference between the agricultural year and the calendar year (the tax-gathering season began after the harvest) the start of thearaji (land-tax) year was delayed by one month every 120 years. A Roman historian, Quintus Curtius Rufus, describing a ceremony in 333 BC, writes:

The magi were followed by three hundred and sixty-five young men clad in purple robes, equal in number to the days of a whole year; for the Persians also divided the year into that number of days.[6]

After the conquests byAlexander the Great and his death, the Persian territories fell to one of his generals,Seleucus (312 BC), starting theSeleucid dynasty of Iran. Based on the Greek tradition, Seleucids introduced the practice of dating by era rather than by the reign of individual kings. Their era became known as that of Alexander, or later theSeleucid era. Since the new rulers were not Zoroastrians, Zoroastrian priests lost their function at the royal courts, and so resented the Seleucids. Although they began dating by eras, they established their own era of Zoroaster.

That was the first serious attempt to determine the dates associated with the prophet Zoroaster's life. Priests had no Zoroastrian historical sources, and so turned to Babylonian archives famous in the ancient world. From these they learned that a great event in Persian history took place 228 years before the era of Alexander. In fact, this was the conquest ofBabylon by Cyrus the Great in 539 BC. But the priests misinterpreted this date to be the time the "true faith" was revealed to their prophet, and sinceAvestan literature indicates that revelation happened when Zoroaster was 30 years old, 568 BC was taken as his year of birth. The date entered written records as the beginning of the era of Zoroaster, and indeed, thePersian Empire. This incorrect date is still mentioned in many current encyclopedias as Zoroaster's birth date.

Modifications by Parthians, Ardashir I, Hormizd I, Yazdgerd III

[edit]

TheParthians (Arsacid dynasty) adopted the same calendar system with minor modifications, and dated their era from 248 BC, the date they succeeded the Seleucids. Their names for the months and days are Parthian equivalents of the Avestan ones used previously, differing slightly from theMiddle Persian names used by theSassanians. For example, in Achaemenid times the modern Persian month 'Day' was called Dadvah (Creator), in Parthian it was Datush and the Sassanians named it Dadv/Dai (Dadar in Pahlavi).

When in April of AD 224 the Parthian dynasty fell and was replaced by the Sasanid, the new king,Ardashir I, abolished the official Babylonian calendar and replaced it with the Zoroastrian. This involved a correction to the places of thegahanbar, which had slipped back in the seasons since they were fixed. These were placed eight months later, as were theepagomenai, the 'Gatha' or 'Gah' days after the ancient Zoroastrian hymns of the same name. Other countries, such as the Armenians and Choresmians, did not accept the change. The new dates were:

No.NameAchaemenidChoresmianSasanianTime since previous
1maidyozarem(11-) 15 ii (Ardawahisht)15 v(11-) 15 x (Day)45 days
2maidyoshahem(11-) 15 iv (Tir)15 vii(11-) 15 xii (Spandarmad)60 days
3paitishahem(26-) 30 vi (Shahrivar)30 ix(26-) 30 ii (Ardawahisht)75 days
4ayathrem(26-) 30 vii (Mihr)30 x(26-) 30 iii (Khordad)30 days
5maidyarem(11-) 15 x (Day)10 i(11-) 15 vi (Shahrewar)75 days
6hamaspathmaidyem(1-) 5 Epagomene30 iii(1-) 5 Epagomene80 days

In AD 224 the vernal equinox at Greenwich fell at noon on 21 March, which was 22 Shahrewar. Immediately after the reform 21 March corresponded to 27 Shahrewar. Here is the calendar for AD 225–6:

* = 1 Epagomene
Armenian
month
First dayEgyptian
month
First dayPersian
month
First day
126* September–1 October426 September126 September
231 October526 October226 October
330 November625 November325 November
430 December725 December425 December
529 January824 January524 January
628 February923 February623 February
730 March1025 March725 March
829 April1124 April824 April
929 May1224 May924*–29 May
1028 June123*–28 June1028 June
1128 July228 July1128 July
1227 August327 August1227 August

The change caused confusion and was immensely unpopular. The newepagomenai were referred to as "robber days". The people now observed the "Great"nowruz on 6 Frawardin, which was Zoroaster's birthday and corresponded to 1 Frawardin in the old calendar. The new 1 Frawardin was observed as the "lesser"nowruz.Hormizd I (AD 272–273) made the intervening days into festivals as well. In AD 273, the vernal equinox at 0° fell at 05:00 UTC on 21 March.

Yazdegerd I reigned from AD 399–420. In AD 400 the equinox fell about 19 March, which was 9 Aban. According to al-Biruni, in that reign there was a double adjustment of the start of thearaji year. The tenth-century astronomer Abu'l-asan Kusyar noted that during the reign of Osrow II (AD 589–628) the sun entered Aries in Adur. This happened throughout his reign. Anaraji era was introduced dating from AD 621, and the Yazdegerdi era dates from 16 June AD 632, so the Yazdegerdi era is eleven years behind thearaji.

Muslim conquest

[edit]

The Muslim rulers who took over from the middle of the seventh century used theIslamic calendar for administration, which caused hardship because the year was shorter – i.e. a tax which was formerly collected after the harvest would now have to be paid before the harvest. Traditionally it is said that theCaliphOmar reintroduced the Persian calendar for tax collection purposes.[citation needed]

In AD 895 there was another double readjustment of the start of thearaji year. It moved from 1 Frawardin (12 April) to 1 Khordad (11 June). By AD 1006 the vernal equinox, 15 March, was again coinciding withnowruz, 1 Frawardin. In that year, therefore, theepagomenai were delayed four months, moving from the end of Aban to their old position at the end of Spandarmad. This is the calendar for AD 1006/7:

* denotes 1 Epagomene
Armenian
month
First dayOld
Egyptian
month
First dayPersian
month
First day
115*–20 March415 March110*–15 March
219 April514 April214 April
319 May614 May314 May
418 June713 June413 June
518 July813 July513 July
617 August912 August612 August
716 September1011 September711 September
816 October1111 October811 October
915 November1210 November910 November
1015 December110*–15 December1010 December
1114 January214 January119 January
1213 February313 February128 February

Thegahanbar did not move quite to their old places, because the fifth moved to 20 Day, which was the old 15 Day, thus increasing the interval between the fourth and fifth to eighty days and reducing the interval between the fifth and sixth to 75 days. The new dates were:

No.NameDateTime since previous
1maidyozarem(11-) 15 ii (Ardawahisht)45 days
2maidyoshahem(11-) 15 iv (Tir)60 days
3paitishahem(26-) 30 vi (Shahrivar)75 days
4ayathrem(26-) 30 vii (Mihr)30 days
5maidyarem(16-) 20 x (Day)80 days
6hamaspathmaidyem(1-) 5 Epagomene75 days

Medieval era: Jalali calendar

[edit]
Main article:Jalali calendar

In AD 1079, by the order of the Jalal Al-Din ShahSeljuqi, the Islamic Calendar (which was and is based on the lunar system) was replaced in Persia by the calendar ofOmar Khayyam and was called the Jalali Calendar. Khayyam and his team had worked 8 years inIsfahan, the capital of Iran during theSeljuq dynasty. The research and creation of the Khayyam calendar was financially supported by Jalal Al din Shah. Khayyam designed his calendar in which the beginning of the new year, season and month are aligned and he named the first day of the spring and the new year to be Norooz (also spelledNowruz). Before Khayyam's calendar, Norooz was not a fixed day and each year could fall in late winter or early spring.

From 15 March 1079, when the calendar had slipped a further eighteen days, thearaji calendar was reformed by repeating the first eighteen days of Frawardin. Thus 14 March was 18 Frawardinqadimi (old) orfarsi (Persian) and 15 March was 1 Frawardinjalali ormaleki (royal). This new calendar was astronomically calculated, so that it did not haveepagemonai – the months began when the sun entered a new sign of the zodiac.

About 120 years after the reform of AD 1006, when the vernal equinox was starting to fall in Ardawahisht, Zoroastrians made it again coincide withnowruz by adding a second Spandarmad. ThisShensai calendar was a month behind theqadimi still used in Persia, being used only by the Zoroastrians in India, the Parsees. On 6 June 1745 (Old Style) someParsees re-adopted theqadimi calendar, and in 1906 some adopted theFasli calendar in which 1 Frawardin was equated with 21 March, so that there was a sixth epagomenal day every four years. In 1911 thejalali calendar became the official national calendar of Persia. Some Zoroastrians in Persia now use theFasli calendar, having begun changing to it in 1930.

Modern calendar: Solar Hijri (SH)

[edit]
Main article:Solar Hijri calendar

The present Iranian calendar was legally adopted on 31 March 1925, under the earlyPahlavi dynasty. The law said that the first day of the year should be the first day of spring in "the true solar year", "as it has been" ever so. It also fixed the number of days in each month, which previously varied by year with thesidereal zodiac. It revived the ancient Persian names, which are still used. 1 Farvardin is the day whose midnight start is nearest to the instant of vernal equinox. The first six months have 31 days, the next five thirty, and the twelfth has 29 days and 30 in leap years.

It specifiedthe origin of the calendar to be theHijrah of Muhammad from Mecca to Medina in AD 622.[7] It also deprecated the 12-year cycles of the Chinese-Uighur calendar which were not officially sanctioned but were commonly used.

On March 10, 1976 (20 Esfand 1354), ShahMohammad Reza Pahlavi introduced the "Imperial calendar" that measured the first year from559 BC, the beginning ofCyrus the Great's reign and the foundation of the Achaemenian Empire, rather than622 AD, theHijra ofMuhammad. Overnight, the year changed from 1355 to 2535. This change was reversed slightly more than two years later, on September 2, 1978 (11 Shahrivar 2537, which became 11 Shahrivar 1357), in the wake of civil unrest preceding theIranian revolution, and the calendar reverted to Solar Hijri.[8][9] Correspondence of Solar Hijri and Gregorian calendars (Solar Hijri leap years are marked *):[10]

33-year
cycle[11]
Solar Hijri yearGregorian yearSolar Hijri yearGregorian year
11354*21 March 1975 – 20 March 19761387*20 March 2008 – 20 March 2009
21355
(2535)
21 March 1976 – 20 March 1977138821 March 2009 – 20 March 2010
31356
(2536)
21 March 1977 – 20 March 1978138921 March 2010 – 20 March 2011
41357
(2537)
21 March 1978 – 20 March 1979139021 March 2011 – 19 March 2012
51358*21 March 1979 – 20 March 19801391*20 March 2012 – 20 March 2013
6135921 March 1980 – 20 March 1981139221 March 2013 – 20 March 2014
7136021 March 1981 – 20 March 1982139321 March 2014 – 20 March 2015
8136121 March 1982 – 20 March 1983139421 March 2015 – 19 March 2016
91362*21 March 1983 – 20 March 19841395*20 March 2016 – 20 March 2017
10136321 March 1984 – 20 March 1985139621 March 2017 – 20 March 2018
11136421 March 1985 – 20 March 1986139721 March 2018 – 20 March 2019
12136521 March 1986 – 20 March 1987139821 March 2019 – 19 March 2020
131366*21 March 1987 – 20 March 19881399*20 March 2020 – 20 March 2021
14136721 March 1988 – 20 March 1989140021 March 2021 – 20 March 2022
15136821 March 1989 – 20 March 1990140121 March 2022 – 20 March 2023
16136921 March 1990 – 20 March 1991140221 March 2023 – 19 March 2024
171370*21 March 1991 – 20 March 19921403*20 March 2024 – 20 March 2025
18137121 March 1992 – 20 March 19931404 21 March 2025 – 20 March 2026
19137221 March 1993 – 20 March 1994140521 March 2026 – 20 March 2027
20137321 March 1994 – 20 March 1995140621 March 2027 – 19 March 2028
21137421 March 1995 – 19 March 1996140720 March 2028 – 19 March 2029
221375*20 March 1996 – 20 March 19971408*20 March 2029 – 20 March 2030
23137621 March 1997 – 20 March 1998140921 March 2030 – 20 March 2031
24137721 March 1998 – 20 March 1999141021 March 2031 – 19 March 2032
25137821 March 1999 – 19 March 2000141120 March 2032 – 19 March 2033
261379*20 March 2000 – 20 March 20011412*20 March 2033 – 20 March 2034
27138021 March 2001 – 20 March 2002141321 March 2034 – 20 March 2035
28138121 March 2002 – 20 March 2003141421 March 2035 – 19 March 2036
29138221 March 2003 – 19 March 2004141520 March 2036 – 19 March 2037
301383*20 March 2004 – 20 March 20051416*20 March 2037 – 20 March 2038
31138421 March 2005 – 20 March 2006141721 March 2038 – 20 March 2039
32138521 March 2006 – 20 March 2007141821 March 2039 – 19 March 2040
33138621 March 2007 – 19 March 2008141920 March 2040 – 19 March 2041

See also

[edit]

References

[edit]

Citations

[edit]
  1. ^Heydari-Malayeri, M. (2004)."A concise review of the Iranian calendar". Paris Observatory.
  2. ^(Panaino 1990).
  3. ^Hallock, Richard T. (1969). "Persepolis Fortification Tablets".Oriental Institute Publications.92. University of Chicago Press: 3, 75–76.
  4. ^"CALENDARS".Encyclopaedia Iranica. Retrieved19 May 2019.
  5. ^Taqizadeh S H:Old Iranian Calendars, Royal Asiatic Society (1938).
  6. ^Curtius, iii, 10.
  7. ^Fazlur Rehman Shaikh,Chronology of Prophetic Events (London: Ta-Ha Publishers Ltd., 2001), p. 157.
  8. ^"Note on Transliteration and Dates", inIranian Intellectuals in the Twentieth Century, by Ali Gheissari (University of Texas Press, 2010)
  9. ^Molavi, Afshin; Mawlawī, Afšīn (2002).Persian Pilgrimages by Afshin Molavi. W. W. Norton & Company.ISBN 9780393051193.
  10. ^Oertel, Holger (30 May 2009)."Persian calendar by Holger Oertel". Ortelius.de. Archived fromthe original on 16 July 2012. Retrieved11 August 2012.
  11. ^The Persian calendar for 3000 years, (Kazimierz M Borkowski),Earth, Moon, and Planetsss,74 (1996), No. 3, pp 223–230.

Bibliography

[edit]
  • Panaino, Antonio (1990)."CALENDARS, i. Pre-Islamic calendars".Encyclopaedia Iranica. Vol. 4.ISBN 0-7100-9132-X.
  • Taqîzâda, Sayyid Ḥasan, Gâhshumârî dar Îrân-i qadîm, Tehran (Čapkhâna-yi Majlis) 1316/1937-1938, (reprinted with the author's notes appointed to the first edition in the 10th vol. of the Opera omnia, ed.by Î. Afshâr, Tehran, 1357/1978-79). Complete Italian ed.: H. Taqizadeh, Il computo del tempo nell'Iran antico, ed. and transl. by S. Cristoforetti, Roma (ISIAO), 2010.ISBN 978-88-6323-290-5

External links

[edit]
Online calendars and converters
Programming
Systems
In wide use
In limited use
Types
Christian variants
Historical
By specialty
Reform proposals
Displays and
applications
Year naming
and numbering
Terminology
Systems
Fictional
Months of theIranian calendar (SH)
International
National
Other
Retrieved from "https://en.wikipedia.org/w/index.php?title=Iranian_calendars&oldid=1299079006"
Categories:
Hidden categories:

[8]ページ先頭

©2009-2025 Movatter.jp